Portrait Study of an Exotic Woman signed

A circa 1920's Charcoal and crayon study. A portrait sketch of an exotic woman attributed to known Naples, Italy artist Domenico de Vanna (1896-1953). Looking over her shoulder, this lovely Blackamoor or Nubian is just beautiful. Signed on the lower left, it is handsomely framed in a period gold wood frame, and is in excellent ready to hang antique condition.